package com.j.lemon.learn.basic;


import org.junit.jupiter.api.Test;

import java.util.HashSet;
import java.util.Set;

/**
 * @Author lijunjun
 * @Date 2019-04-16 10:20
 * @Description
 */
public class Test1 {


    /**
     * ++i 和 i++
     */
    @Test
    void test(){
        int i = 1;
        i=i++;
        int j = i++;
        int k = i+ ++i * i++;
        System.out.println(i);
        System.out.println(j);
        System.out.println(k);
    }

    @Test
    void test1(){
        Set<String> set = new HashSet<>();
    }



}
